fix: studio handle clicking on "listening on ..." message (#948)

We now output

```
Listening on http://localhost:3333
Opening URL in your browser:  https://app.speakeasy.com/org/speakeasy-self/speakeasy-self/studio/3333#stu-e6e482886b6a4e913a183c61fed1d248
```

They could click on the localhost one so we redirect in that case

internal/studio/launchStudio.go

@@ -71,6 +71,7 @@ func LaunchStudio(ctx context.Context, workflow *run.Workflow) error {
  }
 
  mux := http.NewServeMux()
+ mux.HandleFunc("/", handler(handlers.root))
  mux.HandleFunc("/health", handler(handlers.health))
 
  mux.HandleFunc("/run", func(w http.ResponseWriter, r *http.Request) {
@@ -98,14 +99,14 @@ func LaunchStudio(ctx context.Context, workflow *run.Workflow) error {
 
  serverURL := auth.GetWorkspaceBaseURL(ctx)
 
- url := fmt.Sprintf("%s/studio/%d#%s", serverURL, port, secret)
+ handlers.StudioURL = fmt.Sprintf("%s/studio/%d#%s", serverURL, port, secret)
 
  listeningMessage := fmt.Sprintf("Listening on http://localhost:%d\n", port)
 
- if err := browser.OpenURL(url); err != nil {
- fmt.Println(listeningMessage+"Please open the following URL in your browser:\n\t", url)
+ if err := browser.OpenURL(handlers.StudioURL); err != nil {
+ fmt.Println(listeningMessage+"Please open the following URL in your browser: ", handlers.StudioURL)
  } else {
- fmt.Println(listeningMessage+"Opening URL in your browser:\n\t", url)
+ fmt.Println(listeningMessage+"Opening URL in your browser: ", handlers.StudioURL)
  }
 
  // After ten seconds, if the health check hasn't been seen then kill the server
@@ -143,7 +144,7 @@ func corsMiddleware(next http.Handler) http.Handler {
 
 func authMiddleware(secret string, next http.Handler) http.Handler {
  return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
- if r.Header.Get("X-Secret-Key") != secret {
+ if r.Header.Get("X-Secret-Key") != secret && r.URL.Path != "/" {
  http.Error(w, "Unauthorized", http.StatusUnauthorized)
  return
  }

internal/studio/studioHandlers.go

@@ -35,6 +35,7 @@ type StudioHandlers struct {
  SourceID string
  OverlayPath string
  Ctx context.Context
+ StudioURL string
 
  mutex sync.Mutex
  mutexCondition *sync.Cond
@@ -206,6 +207,12 @@ func (h *StudioHandlers) health(ctx context.Context, w http.ResponseWriter, r *h
  return nil
 }
 
+func (h *StudioHandlers) root(ctx context.Context, w http.ResponseWriter, r *http.Request) error {
+ // In case the user navigates to the root of the studio, redirect them to the studio URL
+ http.Redirect(w, r, h.StudioURL, http.StatusSeeOther)
+ return nil
+}
+
 func (h *StudioHandlers) updateSource(r *http.Request) error {
  var err error